Phonak eXtra, Руководство пользователя

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Insert the cleaning rod where the slim tube attaches
to the hearing instrument and push all the way through
the slim tube and out through the dome
햳
. It is not
recommended to submerge or rinse the slim tube and the
dome with water, as there is a risk that a water drop
may become lodged in the slim tube. If this should occur,
it will prevent sound from coming through the slim
tube, and may be harmful to the hearing instrument’s
electronics.
The slim tube and dome should be changed every third
month or sooner if the slim tube becomes stiff or brittle.
Only your hearing care professional should change the
dome. This is to prevent the dome from detaching from
the slim tube during insertion in the ear, which might
result in injury.